Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dinh viec » dinh viet, sinh viec, sinh vien
van nang » van quang, van ban, van dung
nang ma » tang ma, sang ma, mang may
va dinh » van dinh, va kinh, va tinh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
luc va » duc va, tuc va, loc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky ((nang ma) OR (nang cao)) hoi. hieu ((van nang) or (van dong)) luc va dinh viec cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang ma) OR (nang cao)) hoi. hieu ((van nang) OR (van dong)) luc va dinh viec cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((nang ma) OR (nang cao)) hoi. hieu ((van nang) or (van dong)) luc va dinh viec cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang ma) OR (nang cao)) hoi. hieu ((van nang) or (van dong)) luc va dinh viec cua triet*.